Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5934875 | Removable helicopter mast | — | 1999-08-10 |
| 5915649 | Roadable helicopter | — | 1999-06-29 |
| 5897077 | Quick-change skid landing gear | — | 1999-04-27 |
| 5626312 | Piezoelectric actuator | — | 1997-05-06 |
| 5403155 | Power management for a turbine powered helicopter | Channing S. Morse, Thomas G. Ashe | 1995-04-04 |
| 4695227 | All composite, constant speed universal joint for use in a shaft driven tiltable main rotor for a helicopter | Samuel S. Yao | 1987-09-22 |
| 4381902 | Helicopter tail rotor of the elastomerically-mounted composite flexbeam type | Debashis Banerjee | 1983-05-03 |